Locomotive-boiler furnace.



G. B. MOORE.

LOCOMOTIVE BOILER FURNAGE, APPLICATION IILED DEO.18.1911.

, 1, 1 1 5,955. Patented NOV.3,1914.

C'EARLES :s. MOOE, os EVANSION, zminoxs, nsSrensronmnmcnn ARCH oonzrnnr, on NEW YORK, N. Y., A conronsmo:os NEW YORK.

LOCMO'IVE-BOILER FURNACE. L

Y Speification of Letters Patent.

Patented Nm: 3 1914.

' 3750m 2% ma canne-m.

Se il l nown 'il'el L CIL xnns B. Moonn a ;'rizen of me United Stntes, and a resident i'alre eizy ni Emnston, Cool: county, Illi* J:57 have n'venied certain new and useful improvernents in Locomotive-Boiler Furand has parfieular ref- 1ee o improvements in refrnetory baifies or uefleeting walls connnonly cnlled arches ior 'l10 fireboxes of locomotives.

llie o:i my invention are L o provide n. 1 3'1':1(1i' ry nreh whieh ea'n be easily and qui -k installed in locomotive iirebo te prenne ah arch Whih shail loe olt' light weight and low cost; to provide an nreh which shn1l be easy to repair, and parts of Wl1ieh may be rendily removed for the purpose of a-iorcling easy access to the side sheets and fine sheet of the firebox; and o provide an aroh of a form that shall materially assist in the adn ing of the firebox 25 and the igniting et the gnses and the "riel pnrtieles cnrried thereby.

specinl objeet of my in; ntion is to provide en improved. refraetory arch construction imring tl1e eharaeteristics herein outlined wlrioh shnil be partieularly ndaped for instnlltion and me in locomotive boiler fireboxes that are em.zipped wish a pluralifey 01'. cireulating or ereh supporting tubes.

My inver1ti0n consiste in the seveml im provemeni:s tl1e mrious constructions and the comb iriations 01 parts by whiclr the nbove objecbs are attnined, together with others horeinaiter appenring, and. 2111 as herein fully deseribed and particuiarly pointed out in l1e appended claims.

1% invention will be more readily underod by referenee to the accompanying drawings, :forming sport of this speoificatien. and in whieh:

Figure 1 is 21 vertical, central, longitndL nal section of a locomotive firebox equippe with 21 refrnotory arch embodying my in- -vention; Fig. 2 a horizontal sectionnl view of the firobox on line 92 of Fig. 1.;

Fig. 3 is a transverse vertical sectional view of the firebox on the line 33 of Fig. 1; Fig.

is trnnsverse vertical fragmentary sectionai view of the fireoox and areh on the line 4-4 ef Fig. 1; Fig. 5 is a fragmentary perspective vise of me of the areh bricks; Fig. 6

is a perspective VieW ol' one of the arch spacing or key bricks; Fig. 7 is an enlarged fragmentary ransve'rse section of the arch on the line '77 of-Fig. 2; and Fig. 8 is 21 perspective view of oneof the side arch koy bricks.

My invenio1iis epable'of embodiment i:1

arches occupying rarions positions in tie firebox and having difierent specifio funetions. I have, however, eonfined the illustation of the invention to so-called fron; arches, but I. wish it nnderstood that my invention is not limited to this specifie forr.1 or position of arch. A so-ealled front areh nsnnlly oeeupies an inelined position in tlre iirebox extendingsubsiantiily from side t0 side therein and hnvingg its forvmrd end in substantinl abutment. ivith the fine sheet. Tire principai funeion of these arches is to deflect the firebox gases out of their direct line of flow from the grate 110 the fines and cause them to travel baek and forth in the firebox hereby not only distributing ther lient to subs antially the whole interior surface of the firebox and espeoialiy throughout the lengizh of the erown shee't; butelso serving to adrnix or eomnrihgle the various strate or" gases nrtd'thereby asist'in'the coin pleo eombustionof the fuel. A second le suit aeoomplished by the defieetion of the gases is thnt they are retained thereby in the firebox long enough to acoomplish their complete combustion before they escape througr the fines. Front arches constructed in aoeordanoe with my invention net oniy perfor1n the fonctions aboveflnentioned, in it also by reas:on of theircomparatiVe thinness soon nttain the maximum temprature of the firebox gases and there'by 'assist in the ign ition of the gases and fuel particles carried thereby.

A locomotive firebox, ses illustrated in the drawings. is made up of a fine shoot 2, side sheets 3 a erown sheet 4 and {L rear sheet 5. "ihe firebox has a grate 6, and the rear sheet is provided With a fuel door 7. Fines 8 lead forward from the fine sneet.

The firebox, illnstrated, is equipped With four areh or eironleting tubes 9, the same extending,from the lower portion of the fine sheet to the upper portion of the iear sheet and serving to increase th circulation of water between the front and rear water legs of the firebox.

A principal feaspure of my invention veu:alls or baiiies. substantmily a single plane resting upon the sides; in en croix wbicb is Ilfii6 u or built of :a piuruiity cf snbstantieliy 'identicai refractcry bricks Whicb are so formed chat adjacent bricks may be reiativeiy reversed in'position and zilso that when piaced in position on the tubes they wili be-iocked tcgetber in snob-c manner that the arch es ce whcie :rill irare tbe permanent features of a solid nrcn, whie et the eme time it will be flexible to a certain degree. I build my arches of bricks wbich are long enough to rest upon two adjacent tubes, the size of the bricks otherwise than th&ir length being determined by he feetures t"1at tbey shail be as large as possible whiie not toc henry to be easily handled and that they shall be small enough to be resdily passed tbrough the re door of the firebox.

Iri the form of arch construction illustrated, I maire use of the interlocking brick tubes and hold them truns-sel in the firebcx by means cf intriocking Wedge bricks 13 which interpose between th ends (if the trnnsverse rows cf arch bricks and the side sheets 3 of the firebox. I form the principal portion of the arch, or the arch proper, of a series of the rows cf interlocking arcb brick and ibis main portion of the arch extnds transversely in the firebox substantally equal With the lateral extent of thc arch supporting tubesend I retain it transverscly in the firebox upon the tubes bymcans or" the interlocking wedging ke bricks B arranged between this main porticn of the arch and the side shoots 3, as stated.

All of the arch bricks A are sbstantialiy identicai in sixa15c, a pecnliar'1icature being tbat their opposite ends are ont away in such a manner that they are provided on each end with a projecting ledge or tongue A These tongues extend scross the Width of tbe bricir and ure-s0 ormed that when the bricks are arranged in a row end to and they intcriock the adjacent bricks together in "icb 21 manner that they retain the bricks of the row in position tmnsversely of the fire- "baziX. iis= sbown tbe drawings, these tongues A are substantiaily kali the thickness cf .tbe body of tbe brick, Wbili provides the brick with compiementsry grooves or cut-awcy portions A? of'e depth equal to the .depth of the tonge A and consequentiy the overlpping ends of two adjacent bricks smaller projection A at its middle portion H and imm'ediateiy inside this smaller projection A" the congue isprovided with a cc piementary socket'or depression adapted to receive ,the complementary projection A? of the adjacent brick. These complementary projections or hooks A serve to l1cok-the -adjacent bricks of the row together and prevent the separation of the adjacent bricks. Anocher resultant eature of the complemeritary projections A is that they interiock the bricks against transverse movement and also against relative movement longitudinally on the supportin; tubes. Furthermore, the extreme and surfaces A of the tongues A abut the complementary shoulder A of the adjacent brick and the individual bricks of the row thereby mutualiy retain each other in position. Each of these bricks is provided il on the side face, the extension of which orms the tongues A With a large depression or as-niixing pocket A which is nearly the u extent of the brick in size. This pocket not only serves to reduce the weight of the bri k without decreasing its strength to any ap reciable extent but also provides the br1c with relatively thin marginal edges or ledges A These pockets and ledges provide the individual bricks with subsidiary gas-defiecting walls or surfaces and conseguently add meteriaily to the gas nfixing e ect of the arch, and being ,thin they soon attain the maximum temperature of the firebcx and thereafter serve t0 ignite the gases cf combustion and the fuel particles carried thereby. I

provide the opposite face of the bricks with oppositely arranged smaller gas mixing pockets A", the brick having a central transverse wall A separating these pockets from each other. These pockets extend to the end of the brick and are nearly the fuil width 01 -the brick leaving marginal edges A similar to the marginal edges A on the other side of the brick; 'Ihe ends of. these marginal edges A form the shoulders A on this side of the brick before spoken cf.

The arch locking bricks B are substantially identicel in form, and they are nar. rower than the main or arch' bricks A. They are arranged in upwardly and outwardly inclined positions at each side of the prch, resting at their inner ends upon the versely in the fireboX. Eacli of the bricks B is tapered longitudinaly and their larger ends B which are pizzced upon the outer cmis oi tire bricks are provided Wiil verticaliv projecting tongues B and adjacent socke s B oi dimensions to mutualiy interlock with the projection A and the sockets 31 cf tire arch bricks A. The projection or tongne B is centrally ormed and consequcn'iy when :i brick B isinced in posiion between eachof the bricks A in the side 1OW and. the adjacent side shoot the bricks B are sepzrrncd from ez1ch otner or spaced sport and in sncirposiion the inte1iocking engugcmens of the bricks A. and B rccnins the bricks B in position longitudinnlly of the firebex. In other words, the bricks being chus interlcked arc thcrcby pre'x'enteii irom sliding dom1 t-oward the fine shcet and are seonreiy heid in their propcr position whcre they serve to interloek thc individuel rows oi areh bricks ngainst trnnsverse moremen; in tne firebox. The bricks B, :1s airesdy staeci, are tcg3ered, and th-eir enter ends are mode both thinner and nnrrower thon tixcir inner ends 1nclzing i1; reimtively 211i cosy matcr to t1iin hese bricks t prop eriy -.\e igingi fit beween he ends of the ironsvcrse rows O' arch bricks and the sidsheots of the firebox. For the pnrpose of more cicariy ilinsaraming his structure I bave omited one of the bricks B from Fig. 9 indicuing its position b dot-ted limes.

s ciea ry illustrated in Figs. 1, 2 and 3, prci r to spncc tiie lowcr end of the urch uway, from the fiuo sheet, but o course it wiil be nnderstoodhct t-he fonctions of the arch itseif woniri not be mnterialiy changed b pincing he iower row or tier of bricks agains be fine shcet. To spuce the arch mvay .rom he -fine shoot, I make use of spacing bricks of the same gcneral form us the wedgc-sir ped iocking bricks B. E pince one of these.bricks upon the iower end of each of the :1rch supporting tubes 9 with its smalier cnd in conoct with the fine sheeic and ench'oi" tbese bricks is provided on its iower surface .xi'il a iongitucrinai groom C woich si: 1*;stantinlly fits the pper surface of ;ne tube npon which it and the brick (brebg rests secureiy in position, particw ilii when he nrcb is bniit as tbe iieight of thc zireb rests ngainst tbesc i::ricks and irmiy retains them on thc tubes. Each cf thcse bricks is )10Yidld on its icrger end on tire groorcd or underside Witil zi transvcrse io ige or projecting shoulflcr wbichis (1ii'id0d into two parts by tbe groom C. 'bcse ledges, whcn thc bricks are iaid on the tubes,*ns herctofore expbxined, extend rcarwnrdiy under the iower cdge of the zuch bricks A and serveto more securly hohi snid bricks (J in place.

En buiiding the m.ch, as iiiustrated in the drzmings, i\'hercin a firebox provided with four of tihe inclined circulating tubes is muer ends boriv :iiid s:ud bricks beurs tiormcd W1th shown, place one of he bricks A upon the lower ends of the .two njacentouter tubes 9 et eacb. side of the firebox 'Wii1 their pro jecting Longues A iaid fis upon the tubes} thon place 21 mide brick 1 versed in position npon t-he *no With its projecting tongues A resting 119011 the ongues of the bricks sireadyin position and the projections A of the various bricks entering the complementary s0ckets of adjacent bricks. These three bricks are therefore in ter1ockei against relative movemcn b0il trzmsverse and iongitudinclly in 'Bbe iire box. I thon place one o f the iocking bricks B at cach end of the row thns ormed wbich 1ooking bricks ii edge tiie roc of,:u:ch bricks in position and prevent its bodiiy movement transversey in "be fircbox. The bricks B are moreover intexlecked with the row of arch bricks -both as to relative ion gitudinal and transverse movememt in the 1irebox. The arch is completect by similar transwrsc rows of the arch bricks and the iocking bricks laid open the inclined tubes abovo the first row. Tne arch as a Whole nsnaily comprises s sniflcien nmnber of these transrse rows o arch bricks to bring the upper cdge of: the arch body t0 about the cener of the fircbox, whieh thereby provides the firebox Wib. on inciined firebriek deaiecuing W1ii ci*ranged betWeen the gratte and ihe fines and provided on i*as undcr surface wiiah a pluraliyof snbsidicr ges-mixing and defieczing xmis.

it wiii now be seen thatthe arch as described comprises seveml iongitudinai rows oi. bricks, the aite1nnte rows being reversed in position, some of the rows reseing si their edges npon the tube and the reverse-. rows resilig npon, interlockcd with and supported by tbc first rows.

As many modifications of my invention Wiii readil suggest themselves to one skilied in t.ne art, (10 net limit or confine n1y invention to the specific structure shown herein and described.

iiming thus fully described 3ny invention. cbiixn as nen and iesire o secnre by Letiers Patem:

1. A. iocomotive bGier fircbox having a pi.urniity of areh slippcring cubes in combinntion with a refractery front zrr h therein resting on said tubes, said areh comprising3 a plnmiit3 01f individu-ni reirnctory urh bricks raid upon and si.1pported by said tisC-S. and. locking bricks intcrposeu between thc cd;2jes of sz2id nrc"1 body and adjacent cf tire firebox rcscing :11: their upon suid :1rvh body, the arch de shects mufuzxliy interiocking projections and sockcts and said locking bricks being thereby retnined ugainst movement r1ntirely to the nrch bod v,

' A locomotive boiler firebox having a plurulity of trnnsversely spaced inclined urch supportmg tubes, 1Il comb1nat1on w th a rcfructory front arch comPrising sevei*al runsverse rows of urch bricks arranged side by side rcsting upon and supported by said tubes, and :i wedging or locking brick armngcd ut cuch and of each of said rows of bricks r sting thereon and leuning against the adiucent side shcet, said locking bricks beingr nurrowr than the nrch bricks and suial arch and locking bricks having mutunll overlapping and interlocking ends iihereby the locking bricks are retained aguinst movement relatively to the arch bricks.

3. locomotive boiler. firebox having a group of inclincd arch tubes, a transverse row cf slub-likc firc bricks resting upon the inclined portions of said tubes and laterally co-extensire with suid group et tubes, in

combinetion with marginal bricks resting at their inner cnds upon the ends of said transverse rows of arch bricks and leaning aguinst the side sheets, suid transverse rows of bricks and marginal bricks having substantiully identicul mutually interlocking projections and sockcts whereby said marginal bricks ure held aguinst longitudinal mmemcnt in the firebox relatively to the tronsverse roWs of lire bricks.

4;. A locomotive boiler firebox having a plurality of inclined water-circulating tubes therein, in combination With a refructory front urcb rcsting on said tubes and against the fine sheet, said arch comprising 21. plurulity of substantiully identicul transverse rows of fire bricks laid side by side, eucl1 brick burin lmlf thickness flunges 8X5 tending from its ends udagted t0 overlap a similur frange on the next adjacent brick, the alternate bricks of: euch row being reverscd in position and nll of said bricks lia 'iiig substantinlh identicul vertical inter locking projections end complementary sockets whcrebythe b11cks are retamed nga1nst longitudinal=separation, and 3 marginal brick of less Width thanthe fire bricks arranged ateach and of-each row thereof, suid marginal bricks being interposed be tween the fire bricks andythe adjacent side sbeet of the firebox and.formed Wii3h a complementary projection and socket substan bially identical With the projections and socketsof tl e fire bricks and adpted t0 engage therewith.

5. A locomotive boiler firebox having a. plumlity of inclined water-circnlating tubes thcrein, in combination With an inclined refractory front archtherein and thereon abutting the fine shoot and comprising a plurality 0f slab-like bricks resting upon and supported by said tubes, said arch being lpterally co-extensivc with said tubes and Une edge portions having vertically extending projections and complementary sockets, and a IOW of marginal bricks arrangedat each side of said arch resting at -their inner ends upon the edges of -the arch and leanng against the adjacent respective side shoots, the individual bricks of said rows being separated from each otherand each having projections and sockets similar to the projections and sockets on the edgesof the arch and ndapted-to -interlock therewith whereby the'morginal bricks are held ageinst movement relntively to the arch.

In testimony whereof bave hereunto set my hand this 5th dey of December, 

